Start testing static pressure with the basic Testo 510 static pressure kit. Use offer code "getschooled" at checkout for a great discount

The Testo 550 is the best buy for a capable digital manifold on the market. Bluetooth enabled with two thermistor clamps it does a great job day in and day out. Use offer code "getschooled" at checkout for a great discount

The Testo 770-3 measures amps, volts, capacitance, temperature, wattage and power factor all in one Bluetooth enabled multimeter. Use offer code "getschooled" at checkout for a great discount

The Testo 605i Hygrometer and the 115i Line clamp are the perfect duo to "check the charge without gauges". Use offer code "getschooled" at checkout for a great discount

Prevent refrigerant huffing and theft as well as comply with local codes by using the Novent line of refrigerant locking caps

The Kickstart family of hard start kits use a potential relay and a start capacitor. We find them to be a great option for hard starting in after market service applications

A/C Leak Freeze from Rectorseal is the only leak sealant I have tested that I am confident will not harden and harm a system or your gauge manifold

We use the Safe-T-Switch SS1 and SS2 condensate switches on all of our jobs and they have never let us down